LG T90 True Wireless Bluetooth Earbuds Instructions

June 14, 2024
LG

LG T90 True Wireless Bluetooth Earbuds

Product Information

P &W (Plug and Wireless)
P&W (Plug and Wireless) is a feature of the product that allows you to connect multiple devices wirelessly for audio playback.

Multi-Point & Multi-Paring
The Multi-Point feature enables you to connect multiple devices simultaneously to the product. However, some users may experience music stopping and starting again during this process.

Active Noise Cancellation (ANC)
The Active Noise Cancellation (ANC) feature reduces external noise for an enhanced audio experience. You can turn off ANC by performing a long press. The product also includes Adaptive ANC, which adjusts the noise cancellation level based on your surroundings. Additionally, you can use the “Test My Best Fit” feature to optimize sound quality and noise-canceling effect.

Dolby Atmos Headtracking
The Dolby Atmos Headtracking feature provides an immersive audio experience by tracking your head movements. However, please note that using this feature may reduce the usage time of your TONE Free earbuds. The TONE Free series supports various types of Dolby Atmos sound.

Volume
If you notice a decrease in volume when placing the earbuds in the case and reconnecting them, it is a normal behavior of the product. Please be aware that some users may experience noise and low volume issues with their TONE Free earbuds.

ETC.
The TONE Free series supports various Bluetooth audio codecs for seamless audio streaming. Snapdragon Sound is a technology that enhances the audio quality of Bluetooth devices. If your earbuds are still updating even after placing them in the charging case and closing it, please wait for the update process to complete. The indicator light on the charging case may appear blue or green, but it does not indicate the battery status of the earbuds. If your
TONE Free earbuds are still connected to a Bluetooth device, pleasefollow the appropriate disconnection steps.

Product Usage Instructions

How do I use Plug & Wireless with USB cable?
To use Plug & Wireless with a USB cable, please refer to the user manual for detailed instructions.

Multiple Devices are connected via Plug & Wireless, but no sound comes out.

  • If you’re experiencing no sound when multiple devices are connected via Plug & Wireless, please check the audio output settings of each device and ensure they are properly configured for audio playback.
  • I can’t enter the pairing mode or perform a factory reset when my earbuds are in the case.
  • If you’re unable to enter the pairing mode or perform a factory reset while your earbuds are in the case, please remove them from the case and follow the instructions provided in the user manual to enter the desired mode or perform a factory reset.
  • For optimal sound quality and noise canceling effect, start the test with wearing both earbuds.
  • To achieve the best sound quality and noise-canceling effect, it is recommended to start the “Test My Best Fit” feature by wearing both earbuds simultaneously. Please refer to the user manual for detailed instructions on performing this test.

Adjustment required
If you receive a notification indicating that an adjustment is required, please follow the instructions provided in the user manual to make the necessary adjustments for optimal performance.

Good Wearing
If you receive a “Good Wearing” notification, it means that the earbuds are properly worn and positioned for optimal audio quality and comfort.

Please refer to the user manual for more detailed information and instructions regarding the product’s safety notices and warnings.

How do I use Plug & Wireless with a USB cable?
You can use the Plug & Wireless feature via a USB cable. If you use the Plug & Wireless feature by connecting a USB cable, you can use the microphone. The USB audio device is displayed as TONE-T90QC’.

Try this

  1. Plug in the USB-C cable to the charging case.
  2. Plug in the USB-A cable to the desired device.
  3. Wear your earbuds.
  4. Slide the Plug & Wireless mode switch to the right.
  5. The indicator light on the charging case is flashing green.
  6. Once the charging case and earbuds are connected, the green light turns off and the battery status of the case is displayed.

Multiple devices are connected via Plug & Wireless, but no sound comes out

  • When using multipoint, sound comes out of the connected device that generates sound.
  • If you use Plug & Wireless (using an aux cable) and connect your TONE Free to a mobile phone, sound comes out of the mobile phone if you play music on your mobile phone while listening to music via Plug & Wireless.
  • However, if you press the Play button on other devices connected via an aux cable, such as a PC, the sound won’t be switched to Plug & Wireless.
  • If you stop playing music on the mobile phone, the sound output will be switched to Plug & Wireless again.

I can’t enter the pairing mode or perform a factory reset when my earbuds are in the case
If you can’t enter the pairing mode or perform a factory reset when the earbuds are in the case, check the following options.

  1. Check if Plug & Wireless is turned on.
    • To stay connected, you can’t enter the pairing mode or perform a factory reset with a long press if Plug & Wireless is turned on. LG-T90-True-Wireless-Bluetooth-Earbuds- \(2\)
    • Please try again after turning off Plug & Wireless.
  2. Touch the touchpad of your earbud again or close and open the case, then try again.
  3. Update your software to the latest version.

How do I use multipoint?
Turn on Multi-Point & Multi-Pairing on the TONE Free app to enable the multipoint feature. When the feature is enabled, put the earbuds in the case and enter the pairing mode. Connect a new device. In the Multi-Point & Multi- Pairing menu on the TONE Free app, more options such as adding, connecting, disconnecting, or unregistering a device, is available.

Wait! Here are more tips
From software version 1.10.1, when you open the case and re-connect the device on multipoint, both devices will be re-connected.

  • Once the first device is connected, it starts connecting the second device.
  • To connect the second device, the earbuds must be placed in the case.

Try this

On multipoint, music stops and starts playing again

  • For your convenience, the multipoint feature outputs the sound from any of the connected devices.
  • For example, you are listening to music on Device A and Device B makes a notification sound.
  • Device A stops playing music when Device B outputs the notification sound.
  • Device A plays music again when Device B stops making the notification sound.
  • If a notification sound from your smart device disrupts you when you listen to music on your other device connected via multipoint, set your smart device to vibrate or silent mode.

I want to turn off ANC with a long press
For TONE Free models released after 2022, you can set more options for touch settings.

  • → Select the setting of your choice in the touchpad settings on the TONE Free app.

What is Adaptive ANC?
The noise-canceling performance may vary significantly depending on how earbuds fit into your ears. Adaptive ANC (Active Noise Canceling) is a function that helps enhance the performance of your earbuds even if they are not properly fit into your ears. After wearing the earbuds, it detects the wearing condition within a few seconds and improves your earbuds’ performance.

Test My Best Fit
For optimal sound quality and noise canceling effect, start the test with wearing both earbuds

LG-T90-True-Wireless-Bluetooth-Earbuds- \(6\)

I want to know why the Dolby Head Tracking feature reduces the usage time of my TONE Free
If you enable the Dolby Head Tracking feature, a sensor that tracks the direction of your head is turned on. And the earbuds adjust the direction of the sound as your head moves. The usage time is shorter because your TONE Free performs additional feature.

What type of Dolby Atmos sound does TONE Free support?
At a Glance Dolby Atmos, which is applied to TONE-UT90Q, is a function that provides a spatial sound experience by processing the stereo sound source transmitted via Bluetooth

Wait! Here are more tips

  • Head Tracking: A technology that provides an immersive sound by identifying a user’s head movements
  • Virtual Sound : This is an effect that makes a Bluetooth stereo sound source more spatial. If your smart device is equipped with Dolby Atmos, the virtual sound feature won’t be applied additionally.

Try this
You can set Dolby Atmos on the TONE Free app, and the specifications displayed in the app are different depending on whether your smart device supports Dolby Atmos or not.

  1. For smart devices that do not support Dolby Atmos, you can select the Virtual Sound option.
  2. For smart devices equipped with Dolby Atmos, the virtual sound option is not applied because it is already applied. LG-T90-True-Wireless-Bluetooth-Earbuds- \(7\)
    • Smart devices that do not support Dolby Atmos Smart devices that do support Dolby Atmos
      • For smart devices equipped with Dolby Atmos, you can turn on Dolby Atmos in sound settings or application settings.

At a Glance
The TONE Free models released in 2022 include a function that protects a user’s hearing by lowering the volume when it is re-connected. If the volume is less than 85dB, it keeps the volume. If it is higher than 85dB, the volume is adjusted to level 10 out of level 15.

The volume of my earbuds decreases when I put them in the case and re- connect

Safety Infoi…ation

  • If the volume of is too high, it may lead to hearing loss.
  • Set the volume to an appropriate level.
  • If you keep listening to a high-pitched sound, it may sound normal as your ears get used to it over time. If you feel ringing in your ears or experience muffled hearing, stop listening and have your hearing tested. Frequent exposure to loud sound may accelerate hearing loss.

Here are 3 ways to protect your hearing suggested by professionals

  • Reduce the time you spend listening to loud music
  • Don’t turn up the volume to avoid loud noises around you
  • Turn the volume down if you can’t hear people nearby For instructions on how to set the maximum volume limit of the connected device, refer to the User’s Manual provided with the connected device.
      • For hearing protection, the volume is adjusted to a certain level when the device is re-connected.

My TONE Free makes noise and volume is too low.

  • If the small holes and speaker holes that help the air circulation in the earbuds are clogged with foreign substances (oil, sweat), the sound may be disrupted, or it may create noise.
  • So the noise canceling performance may deteriorate.

Causes and Symptoms

  • The volume is too low or it makes noise.
  • The Active Noise Cancellation (ANC) function doesn’t work properly.

Try this
Clean the speaker hole and air circulation hole in the earbuds regularly to prevent them from being clogged with foreign substances (sebum, earwax, etc.).

  1. After removing the eartip, remove any foreign substances stuck inside. LG-T90-True-Wireless-Bluetooth-Earbuds- \(8\)
  2. Gently clean the hole with a soft brush or dry cotton swab.
    • Be careful not to damage the hole when you clean it with a brush or cotton swab. LG-T90-True-Wireless-Bluetooth-Earbuds- \(9\)
  3. After cleaning, gently press the eartip into the hole to reattach it. LG-T90-True-Wireless-Bluetooth-Earbuds- \(10\)
    • This guide was created for all models, so the images or content may be different from your product.

What Bluetooth audio codecs are supported by the TONE Free series?
All of the TONE Free series support SBC and AAC when listening to music and the TONE-UT90Q model additionally supports apt Adaptive.

No
TONE-UT90Q does not support aptX.

What is Snapdragon Sound?

  • Snapdragon Sound, which is applied to TONE-UT90Q, is a term referring to Qualcomm’s high-quality Bluetooth solution and it supports aptX Adaptive.
  • When a device that supports aptX Adaptive is connected, it provides 24-bit 96kHz Bluetooth audio and the same quality is applied when your TONE Free uses the Plug & Wireless mode.
  • Snapdragon Sound or aptX Adaptive supported devices can be found on the Qualcomm website.

I put the earbuds in the charging case and closed the case, but it is still updating

  • For TONE Free models released in 2022, it keeps updating even if you put the earbuds in the case and close the case. It will be disconnected once the update is completed.
  • For product stability, it is recommended to leave the case open according to the guide to stay connected during the update.

The indicator light on the charging case is blue (green), but it says the earbuds have no battery

  1. When you open the case while the earbuds are in the case, the indicator light indicates the battery level of the earbuds. If it’s red, you need to place them in the charging case and charge them.
  2. If you close the case while the earbuds are inside, the indicator light indicates the battery level of the charging case. If it’s red, you need to charge the charging case using a USB cable or wireless charger.

In addition, you can check the battery status of vour TONE Free on the TONE Free app.

My Tone Free is still connected to my Bluetooth device
If foreign substances such as sweat, water, cosmetics, etc. are stuck in the earbuds or charging case, Bluetooth may be still connected even if you place the earbuds into the charging case and close it.

  • → Possible symptoms
    • Earbuds may not charge properly.
    • Bluetooth is not disconnected.
    • Earbuds may make a high-frequency sound.
    • The indicator light may not work properly.

Causes and Symptoms
I placed my earbuds into the charging case and closed the case, but they are still connected to my Bluetooth device.

Try this
Gently wipe the area where the earbuds are placed in the charging case with a tissue or dry cloth and put the earbuds back in the case.

Safety Notices and Warnings
The following ”Safety Precautions” are to prevent unexpected dangers or damages, 9□ be sure to read them thoroughly.

  • ‘Safety Precautions’ are divided into ‘Warning’ and ‘Caution’
    • WARNING: Failure to follow the instructions may re9ult in serious injury or death.
    • CAUTION: Failure to follow the instructions may result in minor injury or product damage.

Warning

  • Do not drop the product from a high place.
  • Make sure there is no alcohol or benzene in contact with the product.
  • Do not store the product in a wet or dusty place..
  • Do not place heavy objects on the product.
  • Ear1buds tested under controlled laboratory conditions with an IPX4 rating. Resistant to splashed water. Dry before using. Do not charge while wet. Case has not been tested for IPX4.

Caution

  • Do not disassemble. adjust, or repair the product.
  • Do not place the product near excessive heat or flammable material
  • The product may be damaged if an inoompatible charger is used.
  • Keep small components of the product away from infants or children.
  • Make .sure that foreign objects do not enter t -e charger’s connectors (Case charging port and power plug). Foreign objects in the charger’s connectors may result in fire or electric shock.
  • If you have a medical device imp anted, contact your doctor before using th is device.
  • For your safety. do not re move the battery incorporated in the product.
  • This product has a built-in battery. and the battery can not be removed or replaced
  • If you arbitrarily replace the battery or don’t replace it correctly, it may explode.

Caution

  • The lithium-ion battery is a hazardous component that can cause injury.
  • Battery replacement by an unqualified professional can cause damage to your device.
  • Do not discard the battery arbitrarily. Follow the local procedu11e for discarding batteries.
  • In order to prevent unnecessary energy consumption, disconnect the device when fully charged. Always use an easily accessible power outlet for charging your device.
  • Risk of fire or explosion if the battery is replaced by an incorrect type.
  • Do not store or transport at pressures lower t an 0.11 6 bar (11 .6 kPa) and at above 9.32 miles (15,000 m) altitude.
  • Replacement of a battery with an incorrect type that can defeat a safeguard (for example. in the case of some lithium battery types).
  • Disposal of a battery in o fire or a hot oven. or mechanically crushing or rutting of a battery. may result in an 1explos ion.
  • Leaving a battery in an extremely high temperature surrounding environment that can result in an explosion or the leakage, of flammable liquid or gas..
  • A battery subjected to extremely low air pressure, may re9u lt in an explosion or the leakage of flammable e liquid or gas.
  • Do not car1elessly throw away old batteries. It can cause an explosion or fire. The disposal method may vary by country and region. Dispose of it in an appropriate manner.

Precautions when Using the Product

  • Wipe the product dean if it has been expo9ed to a lot of sweat
  • Keep the area around the earphones dean.
  • If you wear earphones for a long time. it may cause pain, and if the moisture in the ears remains long, it may cause skin trouble.

Safety Information

Prevention of Hearing Loss

  • If the volume of the headset is too high. you can experience permanent hearing loss. Set the volume to a safe levet It may sound normal. but if you often listen to high-pitch sounds that can damage your hearing. your ears get used to it over time.
  • If you feel ringing in your ears or hear faint voice, stop listening and get a hearing test The louder the volume, the faster your hearing can be damaged.

Experts suggest you to do the followings to protect your hearing.

  • Limit the time for using the headset with the high volume.
  • Avoid the habit to turn up the volume not to hear loud noises around you
  • If you cannot hear people nearby. turn the volume down.

For how to set the maximum volume limit of the connection device, refer to the user manual provided with the connection device.

Radio frequency exposure

  • This Bluetooth LG Stereo Headset is a radio transmitter and receiver. When in operation, it comm uncages with a Bluetooth-equipped mobile device by receiving and transmitting radio frequency (RF) electromagnet ·c fields (microwaves) in the frequency range 2402 to 2480 MHz.
  • Your Bluetooth headset is designed to operate in compliance with the R exposure guidelines and limits set by national authorities and international health agencies when used with any compatible mobile phone.

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